9871880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 23328000

約数和(自身を除く): 13456120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 59, 89, 94, 118, 178, 188, 235, 236, 295, 356, 376, 445, 470, 472, 590, 712, 890, 940, 1180, 1780, 1880, 2360, 2773, 3560, 4183, 5251, 5546, 8366, 10502, 11092, 13865, 16732, 20915, 21004, 22184, 26255, 27730, 33464, 41830, 42008, 52510, 55460, 83660, 105020, 110920, 167320, 210040, 246797, 493594, 987188, 1233985, 1974376, 2467970, 4935940, 9871880]

約数ペア:

[(1, 9871880), (2, 4935940), (4, 2467970), (5, 1974376), (8, 1233985), (10, 987188), (20, 493594), (40, 246797), (47, 210040), (59, 167320), (89, 110920), (94, 105020), (118, 83660), (178, 55460), (188, 52510), (235, 42008), (236, 41830), (295, 33464), (356, 27730), (376, 26255), (445, 22184), (470, 21004), (472, 20915), (590, 16732), (712, 13865), (890, 11092), (940, 10502), (1180, 8366), (1780, 5546), (1880, 5251), (2360, 4183), (2773, 3560)]